Method and apparatus for extreme-light image enhancement

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United States of America

PATENT NO 12183060
APP PUB NO 20230146016A1
SERIAL NO

17894974

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Abstract

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In a method and apparatus for extreme-light image enhancement, an input image is passed to a lighting classification module in order to be classified into two categories: an under-exposed lighting condition and an over-exposed light condition. Then the classified image is subsequently passed to an enhancement module which comprises a first image enhancement unit and a second image enhancement unit using a mapping function based on a gamma mapping function for mapping the classified image to an output image, respectively. A parameter of the gamma mapping function is estimated by a parameter estimation network, based on the classified image. The parameter estimation network may be a lightweight CNN network which is trained by an unsupervised approach.

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Patent Owner(s)

Patent OwnerAddress
VINAI ARTIFICIAL INTELLIGENCE APPLICATION AND RESEARCH JOINT STOCK COMPANYSYMPHONY OFFICE TOWER CHU HUY MAN STREET VINHOMES RIVERSIDE ECOLOGY URBAN AREA PHUC LOI WARD LONG BIEN DISTRICT HA NOI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bui, Hai Hung Ha Noi, VN 10 3
Nguyen, Duc Minh Khoi Ha Noi, VN 1 0
Nguyen, Ho Man Rang Ha Noi, VN 1 0
Nguyen, Thi Hue Ha Noi, VN 1 0
Tran, Cong Thanh Ha Noi, VN 1 0
Tran, Thi Ngoc Diep Ha Noi, VN 1 0

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